[Pachi] Pachi resignation threshold

Hi,
I use Pachi as a reference opponent, and I would like to know more
about its settings. First of all, is the Windows .exe file on the
official page good? It crashes a lot for me, e.g. start "pachi -t
=250" -> type "genmove b" -> crash (Assertion failed: !(ti->dim ==
TD_GAMES && ti->len.games < GJ_MINGAMES), file search.c, line 417).
Second, it resigns a lot! Can I turn off the resigning behavior? It
often resigns way too early, e.g. on the first move: start "pachi -t
=10000 policy=ucb1,playout=light,prior=eqex=0,dynkomi=none,pondering=0,pass_all_alive
-seed 1" -> type "boardsize 19" -> type "genmove b" -> resign.
Thank you!